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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="intrusive.bst_hooks"></a><a class="link" href="bst_hooks.html" title="Binary search tree hooks: bs_set_base_hook and bs_set_member_hook">Binary search tree hooks: bs_set_base_hook
    and bs_set_member_hook</a>
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<p>
      Binary search tree hooks can be used with several tree-like containers that
      don't need any additional metadata for rebalancing operations. This has many
      advantages since binary search tree hooks can also be used to insert values
      in plain binary search tree, splay tree, scapegoat tree, and treap containers.
    </p>
<pre class="programlisting"><span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="special">...</span><span class="identifier">Options</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">bs_set_base_hook</span><span class="special">;</span>
</pre>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
          <code class="computeroutput"><a class="link" href="../boost/intrusive/bs_set_base_hook.html" title="Class template bs_set_base_hook">bs_set_base_hook</a></code>:
          the user class derives publicly from this class to make it compatible with
          the mentioned tree based containers.
        </li></ul></div>
<pre class="programlisting"><span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="special">...</span><span class="identifier">Options</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">bs_set_member_hook</span><span class="special">;</span>
</pre>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
          <code class="computeroutput"><a class="link" href="../boost/intrusive/bs_set_member_hook.html" title="Class template bs_set_member_hook">bs_set_member_hook</a></code>:
          the user class contains a public member of this class to make it compatible
          with the mentioned tree based containers.
        </li></ul></div>
<p>
      <code class="computeroutput"><a class="link" href="../boost/intrusive/bs_set_base_hook.html" title="Class template bs_set_base_hook">bs_set_base_hook</a></code>
      and <code class="computeroutput"><a class="link" href="../boost/intrusive/bs_set_member_hook.html" title="Class template bs_set_member_hook">bs_set_member_hook</a></code>
      receive the same options explained in the section <a class="link" href="usage.html" title="How to use Boost.Intrusive">How
      to use Boost.Intrusive</a>:
    </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
          <span class="bold"><strong><code class="computeroutput"><span class="identifier">tag</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Tag</span><span class="special">&gt;</span></code></strong></span>
          (for base hooks only): This argument serves as a tag, so you can derive
          from more than one base hook. Default: <code class="computeroutput"><span class="identifier">tag</span><span class="special">&lt;</span><span class="identifier">default_tag</span><span class="special">&gt;</span></code>.
        </li>
<li class="listitem">
          <span class="bold"><strong><code class="computeroutput"><span class="identifier">link_mode</span><span class="special">&lt;</span><span class="identifier">link_mode_type</span>
          <span class="identifier">LinkMode</span><span class="special">&gt;</span></code></strong></span>:
          The linking policy. Default: <code class="computeroutput"><span class="identifier">link_mode</span><span class="special">&lt;</span><span class="identifier">safe_link</span><span class="special">&gt;</span></code>.
        </li>
<li class="listitem">
          <span class="bold"><strong><code class="computeroutput"><span class="identifier">void_pointer</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">VoidPointer</span><span class="special">&gt;</span></code></strong></span>:
          The pointer type to be used internally in the hook and propagated to the
          container. Default: <code class="computeroutput"><span class="identifier">void_pointer</span><span class="special">&lt;</span><span class="keyword">void</span><span class="special">*&gt;</span></code>.
        </li>
</ul></div>
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<td align="right"><div class="copyright-footer">Copyright © 2005 Olaf Krzikalla<br>Copyright © 2006-2015 Ion Gaztanaga<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
      </p>
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